Global Information Lookup Global Information

PAH world hypothesis information


The PAH world hypothesis is a speculative hypothesis that proposes that polycyclic aromatic hydrocarbons (PAHs), known to be abundant in the universe,[1][2][3] including in comets,[4] and assumed to be abundant in the primordial soup of the early Earth, played a major role in the origin of life by mediating the synthesis of RNA molecules, leading into the RNA world. However, as yet, the hypothesis is untested.[5]

A PAH stack assembling
  1. ^ Carey, Bjorn (October 18, 2005). "Life's Building Blocks 'Abundant in Space'". Space.com. Retrieved March 3, 2014.
  2. ^ Hudgins, Douglas M.; Bauschlicher,Jr, Charles W.; Allamandola, L. J. (October 10, 2005). "Variations in the Peak Position of the 6.2 μm Interstellar Emission Feature: A Tracer of N in the Interstellar Polycyclic Aromatic Hydrocarbon Population". Astrophysical Journal. 632 (1): 316–332. Bibcode:2005ApJ...632..316H. CiteSeerX 10.1.1.218.8786. doi:10.1086/432495. S2CID 7808613.
  3. ^ Allamandola, Louis; et al. (April 13, 2011). "Cosmic Distribution of Chemical Complexity". NASA. Archived from the original on February 27, 2014. Retrieved March 3, 2014.
  4. ^ Clavin, Whitney (February 10, 2015). "Why Comets Are Like Deep Fried Ice Cream". NASA. Retrieved February 10, 2015.
  5. ^ Cite error: The named reference snp1 was invoked but never defined (see the help page).

and 26 Related for: PAH world hypothesis information

Request time (Page generated in 0.8651 seconds.)

PAH world hypothesis

Last Update:

The PAH world hypothesis is a speculative hypothesis that proposes that polycyclic aromatic hydrocarbons (PAHs), known to be abundant in the universe,...

Word Count : 1664

RNA world

Last Update:

is proposed in the PAH world hypothesis, whereby polycyclic aromatic hydrocarbons (PAHs) mediate the synthesis of RNA molecules. PAHs are the most common...

Word Count : 10688

Abiogenesis

Last Update:

primordial sea. PAHs have been detected in nebulae, and in the interstellar medium, in comets, and in meteorites. The PAH world hypothesis posits PAHs as precursors...

Word Count : 20814

PAH

Last Update:

PAH or Pah may refer to: Polycyclic aromatic hydrocarbon, one of a class of chemical compounds, organic pollutants PAH world hypothesis, hypothesis that...

Word Count : 270

Tholin

Last Update:

matter in sedimentary rocks PAH world hypothesis – Hypothesis about the origin of life Pseudo-panspermia – Supported hypothesis for the origin of life Sagan...

Word Count : 3568

Polycyclic aromatic hydrocarbon

Last Update:

A polycyclic aromatic hydrocarbon (PAH) is a class of organic compounds that is composed of multiple aromatic rings. The simplest representative is naphthalene...

Word Count : 8856

Molecule

Last Update:

bonded atoms, i.e. "molecules", traces its origins to Robert Boyle's 1661 hypothesis, in his famous treatise The Sceptical Chymist, that matter is composed...

Word Count : 3697

Extraterrestrial life

Last Update:

if life and intelligent life are ubiquitous in the cosmos or rare. The hypothesis of ubiquitous extraterrestrial life relies on three main ideas. The first...

Word Count : 13389

Hydrogen chloride

Last Update:

Iron–sulfur world theory Kerogen Molecules in stars Nexus for Exoplanet System Science Organic compound Outer space PAH world hypothesis Pseudo-panspermia...

Word Count : 2805

Diatomic molecule

Last Update:

nitrogen, occur as diatomic molecules. John Dalton's original atomic hypothesis assumed that all elements were monatomic and that the atoms in compounds...

Word Count : 2550

Pyrimidine

Last Update:

found in meteorites. Pyrimidine, like polycyclic aromatic hydrocarbons (PAHs), the most carbon-rich chemical found in the universe, may have been formed...

Word Count : 2105

Potassium cyanide

Last Update:

Iron–sulfur world theory Kerogen Molecules in stars Nexus for Exoplanet System Science Organic compound Outer space PAH world hypothesis Pseudo-panspermia...

Word Count : 1361

Glycine

Last Update:

meteorite in 1970. The discovery of glycine in outer space bolstered the hypothesis of so called soft-panspermia, which claims that the "building blocks"...

Word Count : 3236

Ammonium

Last Update:

Iron–sulfur world theory Kerogen Molecules in stars Nexus for Exoplanet System Science Organic compound Outer space PAH world hypothesis Pseudo-panspermia...

Word Count : 2081

Outer space

Last Update:

hypothesis suggests that rocks ejected into outer space from life-harboring planets may successfully transport life forms to another habitable world....

Word Count : 13193

Methylamine

Last Update:

Iron–sulfur world theory Kerogen Molecules in stars Nexus for Exoplanet System Science Organic compound Outer space PAH world hypothesis Pseudo-panspermia...

Word Count : 992

Ethylene glycol

Last Update:

been no commercial manufacture or application of ethylene glycol prior to World War I, when it was synthesized from ethylene dichloride in Germany and used...

Word Count : 3257

Chemical formula

Last Update:

Iron–sulfur world theory Kerogen Molecules in stars Nexus for Exoplanet System Science Organic compound Outer space PAH world hypothesis Pseudo-panspermia...

Word Count : 3185

Acetone

Last Update:

17% of the world's capacity, with also significant capacity (7–8%) by Mitsui, Sunoco and Shell in 2010. INEOS Phenol also owns the world's largest production...

Word Count : 5066

Acetonitrile

Last Update:

Safety (1993), Environmental Health Criteria 154. Acetonitrile, Geneva: World Health Organization Greenberg, Mark (1999), Toxicological Review of Acetonitrile...

Word Count : 1804

Hydrogen peroxide

Last Update:

of ribonucleic acids and therefore an origin of homochirality in an RNA world. The molecular structures of gaseous and crystalline H2O2 are significantly...

Word Count : 9169

Heavy water

Last Update:

obtained 1 kg of heavy water and a further 100 kg in February 1945, and upon World War II ending, the NKVD took over the project. In October 1946, as part...

Word Count : 9705

Aluminium hydroxide

Last Update:

Iron–sulfur world theory Kerogen Molecules in stars Nexus for Exoplanet System Science Organic compound Outer space PAH world hypothesis Pseudo-panspermia...

Word Count : 2130

Methyl acetate

Last Update:

Iron–sulfur world theory Kerogen Molecules in stars Nexus for Exoplanet System Science Organic compound Outer space PAH world hypothesis Pseudo-panspermia...

Word Count : 489

Sodium hydroxide

Last Update:

2004, world production was estimated at 60 million dry tonnes of sodium hydroxide, and demand was estimated at 51 million tonnes. In 1998, total world production...

Word Count : 5891

Pyrene

Last Update:

Pyrene is a polycyclic aromatic hydrocarbon (PAH) consisting of four fused benzene rings, resulting in a flat aromatic system. The chemical formula is...

Word Count : 1114

PDF Search Engine © AllGlobal.net